[FFmpeg-trac] #285(avformat:closed): RTSP h264 video stream always reports corrupted macroblock
FFmpeg
trac at avcodec.org
Fri Sep 23 00:05:20 EEST 2016
#285: RTSP h264 video stream always reports corrupted macroblock
-------------------------------------+------------------------------------
Reporter: bovine | Owner: michael
Type: defect | Status: closed
Priority: normal | Component: avformat
Version: unspecified | Resolution: fixed
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+------------------------------------
Comment (by Ph0t0n):
I did some online research today because I am still seeing similar errors.
Back in 2011 a fix to the UDP code was contributed that made a huge
improvement, but I don't think it's completely fixed. I have run quite a
few streams now that exhibit a slight "smearing" issue. It appears to
occur in higher resolution videos and whenever a network connection isn't
absolutely pristine.
The reason I believe ffmpeg's RTSP UDP mode is still broken is because
other libraries are able to play the streams without the issues. VLC for
instance uses Lib555. I have found several groups online that solved the
issue by switching to a different RTSP library. The majority of people
seem to be solving it by switching to TCP, but that pretty much defeats
the whole purpose of RTSP and it increases latency.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/285#comment:23>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list